T.P.
We bought a real temperpedic and both LOVE it. It came with a special wooden base (didn't cost extra) and you shouldn't use it with a box spring. I was just discussing memory foams last night with some friends and one friend said she was sorry she bought a cheaper brand because it was really HOT when they slept. I don't think the temperpedic is hot at all. I tried a sleep number bed in a hotel last year and HATED it also. The best thing about temperpedic is the 30 day trial. There are several different types of temperpedics and you have 30 days to decide if you like it or not. We tried one we thought we would love and didn't really love it, so the store brought out another type (which was actually cheaper) for us to try and we liked it a lot better. Good luck!